C / C++ / MFC

Re: Gradient background to all the dialog boxes and non client area

21-Feb-07 3:59

like this[^] ?

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Sameer_Thakur21-Feb-07 4:45

Sameer_Thakur

21-Feb-07 4:45

Thanks for reply.

Yes I have already tried it. It changes the background color. It also adds the gradient effect but only to the dialog boxes.
My requirement is to provide gradient effect to each dialog box, non client area, various controls like button, edit box, progress bars, list box, list controls, caption bars….. in short to every single control or window visible to the user.

How can I achieve this?

Thanks

Sameer Thakur

Re: Gradient background to all the dialog boxes and non client area

toxcct21-Feb-07 4:46

Re: Gradient background to all the dialog boxes and non client area

21-Feb-07 4:46

what have you tried then ?

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Sameer_Thakur21-Feb-07 4:52

Sameer_Thakur

21-Feb-07 4:52

I tried the code that u have pointed out.
But how to change background of caption bar, non client area?

Thanks

Sameer Thakur

Re: Gradient background to all the dialog boxes and non client area

Hamid_RT21-Feb-07 5:37

Hamid_RT

21-Feb-07 5:37

See here[^] if helpfuls

WhiteSky

Re: Gradient background to all the dialog boxes and non client area

Mark Salsbery21-Feb-07 8:26

Mark Salsbery

21-Feb-07 8:26

HEY! You stole that code from my tester app!

Wait, I stole that from you Poke tongue | ;-P

"Do you know what it's like to fall in the mud and get kicked... in the head... with an iron boot?
Of course you don't, no one does. It never happens. It's a dumb question... skip it."

Re: Gradient background to all the dialog boxes and non client area

toxcct21-Feb-07 8:55

Re: Gradient background to all the dialog boxes and non client area

21-Feb-07 8:55

rotfl.... good point Cool | :cool:

BTW, where is your app ? any chance to see its "pretty face" ?

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Mark Salsbery21-Feb-07 9:03

Mark Salsbery

21-Feb-07 9:03

toxcct wrote:
BTW, where is your app ? any chance to see its "pretty face" ?

All it is is a little MFC project that I keep in the solution I have open all day long.
I use it to test code before I post it here in CP Smile | :)

It has lots of commented out code for
FAQs. It's just a simple dialog-based project. Of course, the coolest thing about it now is
the purplish to green gradient background I stole from you Smile | :)

Mark

"Do you know what it's like to fall in the mud and get kicked... in the head... with an iron boot?
Of course you don't, no one does. It never happens. It's a dumb question... skip it."

UpdateLayeredWindow() doesn't work

Toubou21-Feb-07 2:38

Toubou

21-Feb-07 2:38

Hi,

UpdateLayeredWindow() returned error "The parameter is incorrect", I tried to use AlphaBlend() that use similar parameters and it works fine

Here is the code:

	this->ModifyStyleEx(0, WS_EX_LAYERED);

//---- Generate 32bpp bitmap
	BITMAPINFO bmi;
	memset(&bmi, 0, sizeof(BITMAPINFO));
	bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
	bmi.bmiHeader.biPlanes = 1;
	bmi.bmiHeader.biWidth = 255;
	bmi.bmiHeader.biHeight = 255;
	bmi.bmiHeader.biBitCount = 32;

	unsigned char* bits;

	HDC hdc = CreateCompatibleDC(::GetDC(0));
	HBITMAP hbmp = CreateDIBSection(hdc, &bmi, DIB_RGB_COLORS, (void**)&bits, 0, 0);
	SelectObject(hdc, (HBITMAP)hbmp);
	
	char alp = 0;
	for (int j=0; j<255; j++){
		unsigned char* vertbits = bits + j*255*4;
		for (int i=0; i<255*4; i+=4){
			vertbits[i+0] = 255 * alp / 255;
			vertbits[i+1] = 0;
			vertbits[i+2] = 255 * alp / 255;
			vertbits[i+3] = alp;
			alp++; alp%=256;
		}
	}
//----


	BLENDFUNCTION bf = {AC_SRC_OVER, 0, 255, AC_SRC_ALPHA};
	SIZE s = {255,255};
	POINT p = {0,0};
	BOOL res = ::UpdateLayeredWindow(m_hWnd, ::GetDC(0), 0, &s, hdc, &p, 0, &bf, ULW_ALPHA); //<-- ERROR HERE
	//AlphaBlend(GetDC()->m_hDC, 0, 0, 255, 255, hdc, 0,0,255,255,bf );

Re: UpdateLayeredWindow() doesn't work

prasad_som21-Feb-07 3:23

prasad_som

21-Feb-07 3:23

Toubou wrote:
BOOL res = ::UpdateLayeredWindow(m_hWnd, ::GetDC(0), 0, &s, hdc, &p, 0, &bf, ULW_ALPHA); //<-- ERROR HERE

I'm not sure though, try giving second parameter as NULL.

BOOL res = ::UpdateLayeredWindow(m_hWnd, NULL, 0, &s, hdc, &p, 0, &bf, ULW_ALPHA);

Prasad
Notifier using ATL | Operator new[],delete[][^]

Re: UpdateLayeredWindow() doesn't work

Toubou21-Feb-07 4:39

Toubou

21-Feb-07 4:39

Still doesn't work :/

*Solved*

Toubou21-Feb-07 5:04

Toubou

21-Feb-07 5:04

*SOLVED*

UpdateLayeredWindow() Doesn't work in Modal dialog, it works in Modeless dialog

Querry regarding DoModal

Vikram.....21-Feb-07 2:29

Vikram.....

21-Feb-07 2:29

hi
I am my app i am showing a form to a user using using the doModal method.

int nRet = myFrm.DoModal();

And OnOk event of this form i am validating all the fields. But the problem is , if the user presses the escape key on this dialog, the form gets closed and in nRet i get value as IDOK , without validating any feilds of the form. Why is it happening so.. and how to avoid it.

Vikram Verma

Cedric Moonen21-Feb-07 2:44

Cedric Moonen

21-Feb-07 2:44

See the FAQ[^]

vikram Verma wrote:
if the user presses the escape key on this dialog, the form gets closed and in nRet i get value as IDOK

How did you check that the return value was IDOK ? It should be IDCANCEL as far as I know.

Cédric Moonen
Software developer

Charting control [v1.1]

Vikram.....21-Feb-07 3:05

Vikram.....

21-Feb-07 3:05

yes it was IDCANCEL. I rechecked . And thanks .. I should have gone for FAQ 1st... i am C# programmer stuck due to some work in MFC.

David Crow21-Feb-07 3:21

David Crow

21-Feb-07 3:21

vikram Verma wrote:
And OnOk event of this form i am validating all the fields.

Why have an enabled OK button if fields/controls have invalid contents? That's a bit misleading, in my opinion.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

[Message Deleted]

Newbie0021-Feb-07 4:06

Newbie00

21-Feb-07 4:06

[Message Deleted]

David Crow21-Feb-07 4:09

David Crow

21-Feb-07 4:09

Newbie00 wrote:
How do you know that he has enabled ok button if the fields are filled in improperly??

Because he is validating the controls in response to the OK button being clicked. That means the OK button is enabled.

"Approved Workmen Are Not Ashamed" - 2 Timothy 2:15

"Judge not by the eye but by the heart." - Native American Proverb

toxcct21-Feb-07 4:10

21-Feb-07 4:10

David didn't say so... he said that the UI was badly designed if the user were allowed to validate (press ok button) invalid datas... there should be an On-Fly data validity checking to enable/disable Ok button

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ThatsAlok21-Feb-07 6:22

ThatsAlok

21-Feb-07 6:22

Newbie00 wrote:
[Message Deleted]

message deletion is crime here!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers,
Alok Gupta
VC Forum Q&A :- I/ IV
Support CRY- Child Relief and you

Hamid_RT21-Feb-07 7:11

Hamid_RT

21-Feb-07 7:11

ThatsAlok wrote:
message deletion is crime here!

WhiteSky

Newbie0021-Feb-07 23:27

Newbie00

21-Feb-07 23:27

I've deleted the message because it wasn't worth seeing. I didn't understand David's reply properly ("validating" --> now I know what it really means :]), and I wrote rubbishy post.

ThatsAlok wrote:
message deletion is crime here!

Shall I burn on the balefire....